FSDM311L Fairchild Semiconductor, FSDM311L Datasheet - Page 12

• Manufacturer Part Number: FSDM311L
• Description: IC SWIT PWM GREEN OVP HV 8SOP
• Manufacturer: Fairchild Semiconductor

Specifications of FSDM311L

• Output Isolation: Isolated
• Frequency Range: 61 ~ 73kHz
• Voltage - Input: 7 ~ 20 V
• Voltage - Output: 650V
• Power (watts): 13W
• Operating Temperature: 25°C ~ 150°C
• Package / Case: 8-SOP, 8-LSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FSDM311L_NL; FSDM311L_NL

© 2003 Fairchild Semiconductor Corporation
FSDM311 Rev. 1.1.0 • 7/14/06
Typical Application Example
Features
Schematic
Note:
PC Standby Power
(Demo board)
Auxiliary Power for PC Power Supply with Passive PFC
DC Input Voltage 275V ~ 375V (Voltage Doubler) for 12.5W Output
DC Input Voltage 120V ~ 375V (Off-Line Universal Input) for 10W Output
Isolated Secondary Output 5.1V / 2.5A (max), 3.5A (peak) @V
Isolated Secondary Output 5.1V / 2.0A (max), 2.5A (peak) @V
Non-Isolated Aux-Output 15V(13~17V) / 10mA (up to 20mA)
Regulation 5.1V ±2.5% - Accuracy depends on Reference (e.g. shunt regulator or precision resistors)
Low No-Load Power Consumption:
< 100mW @ All Input Voltage
< 820mW @ All Input Voltage, 0.5W Output
High Efficiency:
> 80% @ 375Vdc Input, 12.5W Output
> 79% @ 160Vdc Input, 10W Output
Application
The selection of aux-winding diode D2 affects Aux-Output (Vcc) regulation. If another component should be used, its
validity must be verified experimentally.
Output Power
Figure 25. Schematic of FSDM311 PC Standby Power
12.5W
10W
Input Voltage
DC 275~375V
DC 120~375V
12
IN
IN
=275~375VDC
=120~375VDC
5.1V (2.5A, isolated)
15V (20mA, non-isolated)
5.1V (2.0A, isolated)
15V (20mA, non-isolated)
Output Voltage (Max. Current)
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